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## Characterization of vector diffraction-free beams

### Abstract

It is observed that a constant unit vector denoted by $\mathbf I$ is needed to characterize a complete orthonormal set of vector diffraction-free beams. The previously found diffraction-free beams are shown to be included as special cases. The $\mathbf I$-dependence of the longitudinal component of diffraction-free beams is also discussed.Comment: 8 pages and 2 figure

Topics: Physics - Optics
Year: 2011
DOI identifier: 10.1364/OL.36.002342
OAI identifier: oai:arXiv.org:1105.0053